Pump



Feb. 24, 1925 1,527,943

w. w. WORD PUMP Filed April 4, 1924 2 Sheets-Sheet 1 I INVENTOR. LulLunm w. mum) I w. w. WORD.

PUMP

Filed April 4, 1924 2 Sh'eets-she'et 2 INVENTOR.

UJILLIFHTI UJ. LUURD ATTORNEY Patented Feb. 24, 1925.

WILLIAM W. WORD, OF

OAKLAND, CALIFORNIA.

PUMP.

Application filed April 4,

To all whom it may concern:

Be it known that I, VVILLIAM TV. WVonn, acitizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented new and useful Improvements in Pumps, of which the following is a specification.

This invention relates to improvements in pumps and has particular reference to a high speed reciprocating pump.

The principal'object of this invention is to produce a' pump which will eliminate the usual hammer effect incident to reciprocating pumps when run at maximum speed wherein the heads are flat, and, consequently, cause a pounding effect.

Another object is to produce a pump of this character which is simple in construction and therefore inexpensive to construct.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of my improved pump,

Figure 2 is a top plan view of Figure 1,

Figure 3 is a cross section of one of the pump cylinders, and

Figure 4 is a diagrammatic view showing the manner of operation.

In the accompanying drawings wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 5 designates a base upon which are supported standards 6 and 7 These stand-- ards have secured thereto yokes 8 and 9. To each of these yokes is secured a sleeve as shown at 11 and 12, respectively.

To the outer end of each of these sleeves is secured a T connection, which T connection is designated at 13 and 14., respectively. These T connections form valve chambers there being an inlet valve and an out-- let valve in each T.

By viewing Figure 2, it will be noted that the inlet valve is designated at 16 and the outlet valve at 17. These valves contact seats 18 and 19, respectively, and are suitably secured within the chamber in any convenient manner.

At 2. 22 I have sh wn master gears 1924. Serial No. 704,211.

and -by' referring to-Figure 3, it will be noted-that the master gear 21 is formed integral with the pump cylinder 23, which pump cylinder fits within the sleeve 12 and is contacted by packing rings 24.

A piston 26 is adapted to reciprocate wvithin the cylinder 23 and it will be noted that' a packing 27 is positioned within the gear 21 and is compressed by a compression nut 28.. The construction of the opposite side of the pump is identical therefore, but one cylinder and piston is being described.

The piston 26 has a concave surface 29 formed in its end, while a head 31 is secured within the cylinder and has a convex surface corresponding to the concave surface 29 of the piston 26. It will be noted that the piston end is formed upon a slant and by viewing Figure 1, it will be noted that the opposite ends of the piston are parallel, while the opposite piston heads are formed upon a slant diverging from each other.

A driving pinion 32 is connected to the shaft 33 and meshes with the gears 21 and 22. A rod 34 is secured to the piston 26 and extends downwardly terminating in guide 36. The result of this construction is as follows hen the shaft 33 revolves, the gear 32 imparts rotation to the gears 21 and 22,

which gears, in turn, cause the cylinders 23 to revolve together with their heads 31. As these heads are formedupon a slant or in other words form a cam they cause the piston 26 to move back and forth within the cylinder, due to the fact that the piston cannot rotate but is held against rotation by the guide rod 3lcontacting the guide 36. A fluid is,.therefore, caused to enter the piston through the inlet valve 16 and to be expelled through the outlet valve 17.

It is obvious that both the intake and outlet valves may be connected to the same source of supply or to different sources of supply as conditions may require.

It is to be understood that the form" of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims, 3

Having thus described my invention, I claim:

1. In a device of the character described a base, supports mounted on said base, yokes extending between said supports, rotatable cylinders mounted in said yokes, a head socured in each of said cylinders, and a reciprocating piston adapted to be moved in said cylinders, through the rotation of said cylinders.

2. In a device of the character described, a base, spaced supports mounted on said base, yokes positioned between said supports, a sleeve positioned in each of said yokes, a cylinder rotatable in each of said sleeves, means for rotating said cylinders, a fixed head formed in each of said cylinders, said heads having inclined convex sur faces, a piston extending into each of said cylinders, the opposite ends of said piston being parallel and formed upon an angle with respect to the side walls, the surface of? the end of said pistons being concave, and means for preventing rotation of said pistons with respect to said cylinders.

3. In a pump, a pair of axially aligned rotatable cylinders, a piston having its opposite ends extending into said cylinders, the opposite end of said piston being formed upon an angle with respect to the side walls thereof, the end surfaces of said piston being concave,stati0nary heads secured in said cylinders, said heads having a convex surface and being formed upon an angle with respect to the side Walls of the cylinder, a gear secured to each of said cylinders for the purpose of imparting rotation thereto, and a driving pinion meshing with each of said gears, for the'purpose of rotating said gears.

In testimony whereof ll afii'x my signat-ure.

WILLIAM W. WORD. 

